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This animation shows how chaotic systems are unpredictable because of their extreme sensitivity to their initial conditions.

This animation explains what a comet is and shows the different graphical distinctions of a comet with respect to its distance from the Sun

This animation explains what a cylcoid is and shows how the size of a cycloid relates to the size of the rolling circle that generates it.

Yes, you read that correctly. Comets may have helped seed life on Earth. Far out, right? Sarah Everts of C&EN has the chemical clues that back up this out-of-this-world hypothesis. Credit: Reactions/American Chemical Society

How do astronauts survive the deadly radiation of deep space? NASA is still figuring out how to protect astronauts from cosmic radiation using plastic shielding and magnetic deflectors. Credit: Reactions/American Chemical Society

This animation explains how seasons depend on the Earth's orbit and explains how the earth's orbital distance and axial tilt give rise to seasons.

This animation shows how eclipses occur when the Sun's rays are blocked.

This animation depicts how the solar system formed from a spinning disk of interstellar gas.

This animation explains that fractals are self-similar geometrical objects at different scales and magnifications and shows how fractals can be generated by applying simple mathematical rules repetitively.

This animation explains Kepler's first law of planetary motion and demonstrates a planet's elliptical orbit around the Sun.